I just got a great tip from a colleague at work ( Richard Sprague ) that I wanted to share. Since it is related, I thought I'd also include a tip I got earlier from Barry Brahier.
Richard came up with a way to transcribe audio recordings into OneNote...

Update: if you use OneNote 2003 with an Origami (Ultra-Mobile PC) device, you should get this hotfix which takes care of an incompatibility between the two (only get it is you find that ink strokes disappear after you write them). This hotfix does not...